Two liquids of different densities (1500 kg/m3, 500 kg/m3) are poured together into a 100 L tank

Two liquids of different densities (1500 kg/m3, 500 kg/m3) are poured together into a 100 L tank filling it. If the resulting density of the mixture is 800 kg/m3, find the respective quantities of liquid used. Also, find the weight of the mixture, local g=6.75 mps2.

Weight of mixture when local gravity is 9.675 mps2